Portable air bubble mat



FIG. 1 is a front perspective view of a portable air bubble mat showing my new design;

FIG. 2 is a perspective view from below of the portable air bubble mat illustrated in FIG. 1;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a rear elevational view of the portable air bubble mat shown in FIG. 1. 

The ornamental design for a portable air bubble mat, as shown and described. 